National Journal: Perfect Attendance

If the job you're elected to do is give your constituents a vote in Washington, you should probably be there to vote. On average, the current class of U.S. senators miss 2.5 percent of all the votes during their tenure, according to data from GovTrack.

So which senator earns the Perfect Attendance badge? That honor goes to Maine Republican Susan Collins, who has not missed a single vote since her election to the Senate in 1997.

"It is a great honor to serve in the U.S. Senate and represent the people of Maine. Voting is one of a senator's most important responsibilities, and I feel strongly about making every effort to be present when the roll is called," Collins said in a statement to National Journal. "People around the country respect Mainers for their strong values and work ethic. I am proud to have continued this voting streak, which was inspired by the legendary Maine Senator Margaret Chase Smith who did not miss a vote for 13 years until surgery forced to her to do so."